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5285564887 = 23229807169
BaseRepresentation
bin1001110110000101…
…10101000111010111
3111122100201111221111
410323002311013113
541311101034022
62232251555451
7244660363111
oct47302650727
914570644844
105285564887
112272622149
12103615bb87
136630741b5
14381d983b1
1520e063477
hex13b0b51d7

5285564887 has 4 divisors (see below), whose sum is σ = 5515372080. Its totient is φ = 5055757696.

The previous prime is 5285564881. The next prime is 5285564903. The reversal of 5285564887 is 7884655825.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5285564887 - 223 = 5277176279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5285564881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114903562 + ... + 114903607.

It is an arithmetic number, because the mean of its divisors is an integer number (1378843020).

Almost surely, 25285564887 is an apocalyptic number.

5285564887 is a deficient number, since it is larger than the sum of its proper divisors (229807193).

5285564887 is a wasteful number, since it uses less digits than its factorization.

5285564887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229807192.

The product of its digits is 21504000, while the sum is 58.

The square root of 5285564887 is about 72701.8905325027. The cubic root of 5285564887 is about 1741.9290807198.

The spelling of 5285564887 in words is "five billion, two hundred eighty-five million, five hundred sixty-four thousand, eight hundred eighty-seven".

Divisors: 1 23 229807169 5285564887